2009 INFINITI QX56 ignition

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Page 789 of 4171

INFINITI QX56 2009  Factory Service Manual BCM (BODY CONTROL MODULE)DEF-21
< ECU DIAGNOSIS >
C
DE
F
G H
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M A
B
DEF
N
O P
19 V/W Remote keyless entry 
receiver (power sup-
ply) Output OFF Ignition switch OFF
20 G/W Remote keyless entry 
re

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INFINITI QX56 2009  Factory Service Manual DEF-22
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
28 L/R Front blower monitor Input ONFront blower motor OFF
Battery voltage
Front blower motor ON 0V
29 W/B Hazard switch Input OFFON
0V
OFF 5V
30 Y/B

Page 791 of 4171

INFINITI QX56 2009  Factory Service Manual BCM (BODY CONTROL MODULE)DEF-23
< ECU DIAGNOSIS >
C
DE
F
G H
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M A
B
DEF
N
O P
44 O Rear wiper auto stop 
switch 1 Input ONRise up position (rear wiper 
arm on stopper)
0V
A Position (full clockwi

Page 792 of 4171

INFINITI QX56 2009  Factory Service Manual DEF-24
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
58 W/R Optical sensorInput ONWhen optical sensor is illumi-
nated
3.1V or more
When optical sensor is not illu-
minated 0.6V or less
59 G Front door

Page 801 of 4171

INFINITI QX56 2009  Factory Service Manual BCM (BODY CONTROL MODULE)DEF-33
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
DEF
N
O P
DTC Inspection Priority ChartINFOID:0000000004223696
If some DTCs are displayed at the same time, perform inspections

Page 802 of 4171

INFINITI QX56 2009  Factory Service Manual DEF-34
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
CONSULT displayFail-safeIntelligent Key 
warning lamp ON Tire pressure 
monitor warning  lamp ON Reference page
No DTC is detected.
further testing
m

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INFINITI QX56 2009  Factory Service Manual PRECAUTIONSDEF-41
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental  Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"
INFOID:00000000058

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INFINITI QX56 2009  Factory Service Manual DEF-42
< PRECAUTION >
PRECAUTIONS
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Conn